7664340733 has 6 divisors (see below), whose sum is σ = 8915661726. Its totient is φ = 6569434872.

The previous prime is 7664340689. The next prime is 7664340757. The reversal of 7664340733 is 3370434667.

It can be written as a sum of positive squares in only one way, i.e., 6241316004 + 1423024729 = 79002^2 + 37723^2 .

It is not a de Polignac number, because 7664340733 - 2²¹ = 7662243581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7664340733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664346733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78207510 + ... + 78207607.

It is an arithmetic number, because the mean of its divisors is an integer number (1485943621).

Almost surely, 2^7664340733 is an apocalyptic number.

It is an amenable number.

7664340733 is a deficient number, since it is larger than the sum of its proper divisors (1251320993).

7664340733 is a wasteful number, since it uses less digits than its factorization.

7664340733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156415131 (or 156415124 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 43.

The square root of 7664340733 is about 87546.2205523459. The cubic root of 7664340733 is about 1971.6278070062.

The spelling of 7664340733 in words is "seven billion, six hundred sixty-four million, three hundred forty thousand, seven hundred thirty-three".